B. Free Problems
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

The judges of DCPC are offering free problems to the contestants; you just have to take them!

They will ask you if you want a free problem.

If you want one, you should output "Yee", and the judges will give you a free problem. Anything else, even "Yes" or "Sure", and they won't give you one.

So, do you want a free problem?

Input

The first line contains a single sentence "Do you want a free problem?".

Output

Print "Yee" (without quotes) if you want a free problem.

You can output the answer in any case (upper or lower). For example, the strings "yEe", "yee", "YEE", and "YeE" will be recognized as positive responses.

Example
Input
Do you want a free problem?
Output
yee